漏洞信息
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Vulnerability Title
BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId
Vulnerability Description
BigBlueButton is an open-source virtual classroom. A denial-of-service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to crash the chat functionality for all participants in a meeting by sending a malformed `reactionEmojiId` in the GraphQL mutation `chatSendMessageReaction`. Version 3.0.13 contains a patch. No known workarounds are available.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
对异常条件检查或处理不恰当
Vulnerability Title
BigBlueButton 安全漏洞
Vulnerability Description
BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton 3.0.13之前版本存在安全漏洞，该漏洞源于发送畸形的reactionEmojiId，可能导致拒绝服务攻击。
CVSS Information
N/A
Vulnerability Type
N/A